#1 2026-05-02 10:08:34

ColinStephens2
Member
2026-05-02
2

Photos now fail after uploading

Hello/Hi/Greetings,

I have been using Piwigo for years without problem until a couple of days ago. Now, when I upload photos they do not show the thumbnail when complete and instead show a square with a broken symbol and a yellow triangle with an exclamation mark when displayed in the album.

I'm using 16.3.0 but I'm not sure when this was updated. All extensions are up to date.
Using a different browser doesn't make a difference.
Using Windows 11

I've contacted the ISP and whilst closing on the maximum number of files allowed for my plan, I'm at 91% with no space limitations.

I'd appreciate any guidance you can provide!

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#2 2026-05-27 21:35:55

zorek
Member
2026-05-18
11

Re: Photos now fail after uploading

Heh! I believe you might be hitting the https://piwigo.org/forum/viewtopic.php?id=33431 https://piwigo.org/forum/viewtopic.php?id=34838 or https://piwigo.org/forum/viewtopic.php?id=34835

Does the upload show "Access denied" or "Unauthorized" anywhere on the screen?
If you open the browsers console, do you see Unauthorized anywhere randomly?

...and there was I suspecting I might be going crazy :)

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#3 2026-05-28 03:02:16

ColinStephens2
Member
2026-05-02
2

Re: Photos now fail after uploading

Thanks for getting back to me.

I was not getting any errors at all and I could then download the same image which was the same as the original so it was simply a display/thumbnail issue.

After investigation I tried adding:
$conf['convert_path'] = '/usr/bin/convert'; ?>
to the plugins local configuration which solved the problem. Apparently the problem can happen when a PHP update is installed and breaks the link to the thumbnail program.

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